Tractor.



TRACTOR.

APPLICATION YILEDA MAY 12, 1916.

Patented De@ 1751918.

a SHEETS SHEET 'www R. E. KELLOGG.

TRACTOR.

APPLLcATloN FILED, MAY'IZ. 1916.

Patented D60. 17, 1918.

a SHEETS-SHEET 2.

R. E. KELLOGG.

TRACTOR.

APPLCAUON FILED MAY12| |916- 15288,022 Patented Deo. 17,1918.

3 SHEETS--SHEET 3.

' TED STATES PATENT oEErcE.

ROBERT E. KELLOGG, OF MADISON, WISCONSIN.

TRACTOR.

Leeaoee.

To all whom t may concern.-

Be it known that I, ROBERT E. KELLOGG, a citizen of the United States, residing at Madison, in the county of Dane and State of Wisconsin, have invented certain new and useful Improvements in Tractors; and I do hereby declare the following to'be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

@his invention relates tonew and useful improvements in tractors and moreparticularly to that type in which an internal combustion engine is used as the motive power. lt is to be understood however that any suitable type of motive power may be used in connection with this invention without deporting from the spirit and scope of the same.

Another object of the invention is to provide a tractor having a low center of gravity thereby increasingthe effectiveness of the device and reducing the possibility of overturning to a minimum thus increasing the utility of the device and allowing the vuse of the same on hillsides.

A still further object of the invention resides inthe provision of a simple means for controlling the movement of the device and steering the same in various directions.

A furtherand more specific object ofthe invention is the provision of a tractor in which the speed of its movement may be easily controlled and varied t0 suit varying conditions.

Still another object of the invention resides in the provision of a tractor eliminating the use of ldriving' chains reducing the friction to a minimum, thereby reducing the wear.

A further object of the invention resides" in the reduction of the steering radius of such devices thus permitting the device to make a shorter turn.

"W ith these and other objects in view, the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings, in which y of the front construction of the device.

Specification of Letters Patent. Patented De, 17, 1918, Appucatiun mea may 12, 191e. serial No. 97,168.

Fig. 4 is a detail sectional view .of the rear construction of the device.

Fig. 5 is an enlarged detail sectional view l through the clutch., and

Fig. 6 is an enlarged transverse fragmenby a transversely extending cross bar 3. A

cross bar 4 is positioned inwardly from the extreme rear terminals of the side bars2 as clearly illustrated in the drawings. Mounted transversely on the frame and spaced inwardly a short distance from the cross bar 3 is a transversely extending cross bar 5 the use of which will appear as the description proceeds. The engine frame is designated generally bythe numeral 6 and comprises a palr of side bars 7 which are joined at their forward ends by the cross bar 8 as clearly shown in Fig. 2 of the drawings. The engine frame above referred to is suspended below the main frame 1 by the vertical hanger bars 9 and extends rearwardly beyond the rearmost terminal of the main frame to provide a platform support. A suitable bow 10 extends between the foremost hanger bars 9 as clearly illustrated in the drawings and this body portion is positioned at a point in a plane with the forward portion of the bar 8.

Formed centrally of the cross bar 4 is a suitable bearing in which the main drive shaft 11 is journaled and the forward end y of this drive shaft is journaled in a suitable bearing formed on the yoke in which the forward construction is mounted. Secured to the shaft 11 near its rear end-is the bevel gear 12, and journaled on the shaft 1 1 in spaced relation to the gear 12 is a. gear 13 13 and said gears mesh with the pinions 14 carried on the bosses 15 of the main drive gear designated generally by the numeral 16. This drive gear 16 is provided with a pair of gear faces 17 and -18 which in turn are adapted t0 mesh with suitable shifting gears mounted on the motor shaft as will be more gral with and extending rearwardly from the gear 13 is a bevel pinion 19 the use of which will appear as the description proceeds.

Secured to the rearrnost vertical hanger bars 9 and on the rear faces thereof are the fully hereinafter described. Formed inteels desigheed pu? gee? A 1 femed en cup and oei's Lippe? side ewedjy md eef-,vedy extend 33. The efemost emi is ifeed es mi 3e @he has 3 of she Esame Whie "che reamcs: erm is formed Wish e hearing 35 which is 'if' e'bed o- 'the bei 5 and in which he eiw end of ehe shefc il is journeied. A hei/ei. pinion 36 is mounted on the oiwerd end ei? the shet adapted 30- ote'te 'heiewizh end this pinion meshes wich the lheve gees 3'? mouned on *che lippe? end of the steh shaft 38 which is *fcetebij/ motief/ed in e hose 39 which extends thecugh the body 3L ri@he iov-Ver end Jhis seub shefs carries @he secties. d) of e suitehie miie/*essai join which is cieelj/ shown in ehe deewihgs. A @enge il is oimed ce1-she lower edge of the cup 32 hereh'y forming en enlarged chemises slew 4he helow potion of the @up and ma' 1y secured io the iower terminal of the delige il is fing i-2 which estende inwardly eed pw? tieiiy incioses the cup.

The wie ci "che device is designee-d generally by he immersi i3 and cchsisss of e euhulei hed?? Lie formed Wish e cen'i'ai enieigehceh; i5 which is heiew ferme ehe chemise? e@ in which she di'ieenjie geeieg; which will he mese uly heseineer deci'ihed is moimed. A hollow stem if? e2:-

stem is e sisef 5i which the 1m-reiD secq tion 5` enshe umveszd joiei; is connected 'l end of shis she'; ceieies the heve einien 52 which is dve en'iei ccneihed ch c Wiii he seen i d is poifided heer its upper eed wih eers Y bij; mculoed en lhfough "che eers 'Qing ove? rough i-eci: *Le prevent sfeining 0;?

eggs sogee heyehd opp@ i s es eceive she hubs 62 of the from; c'c Wheeis designeed generey b v he immer-ei 63. These hubs have radiated thereeom spokes @Se and secured to the outer ends of she seohes ves clearly shown in the diewiegs rims 65.,

Eehding dewiiwe'dy :om Jfhe under sii/deel?. Jche eneigemen' i5 and es e point centeiy es" che eie L3 is e stud 66' around which eye 67 ef he brace "fed 68 extends. This Tod 68 extends upwardly and Teer- Wedy faim she stud 66 and into e sccket G9 cimed in the steeii'ng heed which will be mese uiiy heieineifer described. A paix ci" ehguiaiiy exehdihg brace mds 70 are connested se suiehe ings 7l formed opposite ends oi"- the azie e3 end converge iso-Werd the seche@ 691 and eie secured to the brace iod 68 previously efeired to. The heeing head pilevieusiy eemfed se is designated genereiy the Zimmerei 72 and compises e' body .3 having ehe esiei opening' e? socket 69 emed shefein Twhich communicates et its inner end Wilh the cheminee 74 which in turn commuhicetes ed@ its reef end in en enieged chemhef Zw5 'heugh ehe heed 72 and has i'otasehly meuhed theeiiLi-he she 21? eeiiying et its i' end he wenn geef 78 which meshes *K9-ch the Sheff, S0. The feewem eed of shaft 8G is .Totatehly izo. che yeke 8l which is in turn srziveiy sacem/ed in a manner which will he more uiiy heeineei" described. Secured che heed 72 and extending ino the cham- 75 elfe suieehe sinds 82 on which the iseiefs 83 ese ocetehly mouned.

' eT ding omferdly from the censei of l@ is e suitable brecket Se which s eeothed' sector designated geh- Jhe 85, she inner fece of Wish e piueiity of gee? se edegseed jce mesh wich ehe opposite side edges and these anges are adapted to form guideways on which the rollers 83 travel.

ln order to further assist the tractor 84 in the support of the sector 85 a pair of arms 89 are provided and are secured to the bow 10 at the point intermediate its'upper and lower edges. Suitable brace arms 90 extend forwardly from the foremost vertical bars 9 and are also secured'to the sector 85 at its outer ends. ln order to further assist in the support of the forward ends of the sector 85 brace arms 91 are secured thereto and are connected at their opposite ends to the side bars of the frame.

lin order to'control the movement of the pinion 87 a pair of bevel gears 92 and 93 are loosely mounted on the shaft 11 near its forward end and are provided with inwardly disposed clutch faces which are adapted to be engaged by the clutch member 94 which is splined to said shaft. lt will thus be seen that upon the movement of the clutch 94 into engagement with either of the gears 92 or 93 one or the other of the gears will be rotated in the direction of the rotation of the shaft. A bracket 95 is secured rto the bar 5 and mounted in said bracket is a shaft 96 the upper end of which has secured thereto a bevel pinion 97 which meshes with pinions 92 and 93 and is adapted to be driven thereby. Illhe lower end of this shaft projects through the yoke 81 and mounted within the yoke and secured to the shaft is a suitable worm 98 which meshes with the worm gear 99 at the forward end of the shaft 80. 1t will thus be seen that upon movement lof the clutch 94 into engagement with either of the pinions 92 or 93 the shaft 96 will be rotated thereby imparting rotation to the shaft 80 and causing the worm gear 78 to rotate thus rotating the shaft 76 and causing the pinion 87 to travel along the sector 85 in a direction which is governed by the direction of rota# tion of the shaft 96. ln this way it will be noted that the movement of the pinion 87 will cause the steering head to travel thereby causing the axle 43 to assume various positions with relation to the longitudinal axis of the vehicle. i

In order to providea motive power for controlling the operation of the device a suitable internal combustion engine 100 is provided and is'mounted in the frame' 6. The drive shaft 101 of said enginecarries a -clutch member 102 in connection with which the coperating clutch member 103 operates. rl`his clutch member 103 is Secured to the transmission shaft 104 on which is splined a sleeve 105 carrying at one end a pinion 106 which is adapted to mesh with the gear face 17 of the gear 16 when the device is travel--i ving at low speed. The opposite end of the sleeve is provided with a pinion 107 which is adapted to mesh with the gear face 18 -of the gear 16 when the device is traveling at an increased rate of speed. In this way it will be seen that the speed of the tractor may be varied to suit varying conditions and the steering of the device is automatically aecomplished by mere shifting of the clutch member 94 into either of'its 4operative positions. 4

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination and arrangement of parts as will fall within the spirit and scope of the appended claims.

What is claimed is 1. A tractor comprising a frame, a driven shaft on said frame, means driving said shaft, a rear axle on said frame, means connecting said shaft with the axle, a body sev cured to said frame and having an inverted cup in its lower end,.a ring rotatably mounted within said cup, a housing,I a front axle in said housing, an venlarged portion formed on said housing, a differential connected to the front axle and located within the enlarged portion, a hollow stem formed on said enlarged portion and pivoted to the ring, a stub shaft journaled in said body, means connecting said stub shaft to the driven shaft, a universal".l joint connected to the stub shaft and located Vwithin the cup and the hollow stem, and means connecting the universal joint with the differential.

2. A tractor comprising a frame, a driven shaft on said frame, means driving said shaft, a rear axle on said frame, means connecting said shaft with the rear axle, a body secured to said frame and having an inverted cup inits lower end, a ring rotatably mounted within said cup, a retaining ring secured to the periphery of the cup and partially closing the same to hold the first named ring against displacement, a housing,

ka front axle journaled in said housing, an

enlarged portion formed on said housing, a dierential secured to the front axle and located within the enlarged portion, a hollow stem formed on the enlarged portion and pivoted to the first named rlng, a stub shaft 

